Home / 278,326,352.40-384,079,843.52-154,575,001.12

Finding the Fourth Proportional to 278,326,352.40, 384,079,843.52 and 154,575,001.12

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Solution

The fourth proportional to 278,326,352.40, 384,079,843.52 and 154,575,001.12 is: 213,307,657.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,352.40 : 384,079,843.52 = 154,575,001.12 : x
  2. Step 2: Convert to fraction form
    278,326,352.40/384,079,843.52 = 154,575,001.12/x
  3. Step 3: Cross multiply
    278,326,352.40x = 384,079,843.52 × 154,575,001.12
  4. Step 4: Simplify right side
    278,326,352.40x = 59,369,142,242,273,424
  5. Step 5: Solve for x
    x = 59,369,142,242,273,424/278,326,352.40
  6. Step 6: Final answer
    x = 213,307,657.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.